import cv2
import numpy as np

girl = cv2.imread("../asset/girl.jpeg")
kernel = np.ones((5, 5), np.float32) / 25
dst = cv2.filter2D(girl, -1, kernel)
while True:
    cv2.imshow('dst', dst)
    cv2.imshow('girl', girl)
    key = cv2.waitKey(10)
    if key & 0xFF == ord('q'):
        break
cv2.destroyAllWindows()